import java.util.Scanner;

public class Test7 {
    public volatile static int flag=0;
    public static void main(String[] args) {
        Thread t1=new Thread(()->{
           while(flag==0){

           }
            System.out.println("t1线程结束");
        });
        Thread t2=new Thread(()->{
            System.out.println("请输入falg的值：");
            Scanner scanner=new Scanner(System.in);
            flag=scanner.nextInt();
        });
        t1.start();
        t2.start();
    }
}
